Utilization of industrial by-product fungal biomass from Aspergillus niger and Fusarium culmorum to obtain biosorbents for removal of pesticide and metal ions from aqueous solutions

Cabrera‐Barjas, Gustavo; Gallardo, Francisco; Nešić, Aleksandra; Taboada, Edelio; Maricán, Adolfo; Mirabal‐Gallardo, Yaneris; Ávila-Salas, Fabián; Delgado, Nacarid; Armas-Ricard, Merly de; Valdés, Oscar

doi:10.1016/j.jece.2020.104355

Cited by 21 publications

(10 citation statements)

References 61 publications

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“…The bands in the regions 642 cm −1 and 651 cm −1 indicate the presence of NH 2 groups, whereas those in 1016 cm −1 and 1083 cm −1 represent the stretches of the CO bonding, and those between 1400 cm −1 and 1404 cm −1 represents the folding of CH 2 . The bands observed in 3167 cm −1 , 3280 cm −1 , and 3444 cm −1 represent NH and OH stretching and intramolecular hydrogen bonds of the water molecules of the solvation layer and bands described in other papers [71][72][73][74].…”

Section: Ftir Spectrum Of Chit-f and Chit-fgalmentioning

confidence: 53%

Preparation, Structural Characterization, and Property Investigation of Gallic Acid-Grafted Fungal Chitosan Conjugate

Paiva

Queiroz

Sabry

et al. 2021

JoF

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Oxidative stress is the cause of numerous diseases in humans; therefore, there has been a continuous search for novel antioxidant molecules. Fungal chitosan is an attractive molecule that has several applications (antifungal, antibacterial, anticancer and antiparasitic action) owing to its unique characteristics; however, it exhibits low antioxidant activity. The aim of this study was to obtain fungal chitosan (Chit-F) from the fungus Rhizopus arrhizus and synthesize its derivative, fungal chitosan-gallic acid (Chit-FGal), as a novel antioxidant chitosan derivative for biomedical use. A low molecular weight Chi-F (~3.0 kDa) with a degree of deacetylation of 86% was obtained from this fungus. Chit-FGal (3.0 kDa) was synthesized by an efficient free radical-mediated method using hydrogen peroxide (H2O2) and ascorbic acid. Both Chit-F and Chit-FGal showed similar copper chelating activities; however, Chit-FGal was more efficient as an antioxidant, exhibiting twice the total antioxidant capacity than Chi-F (p < 0.05). Furthermore, H2O2 (0.06 M) promoted a 50% decrease in the viabilities of the 3T3 fibroblast cells. However, this effect was abolished in the presence of Chit-FGal (0.05–0.25 mg/mL), indicating that Chit-FGal protected the cells from oxidative damage. These results suggest that Chit-FGal may be a promising agent to combat oxidative stress.

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Section: Ftir Spectrum Of Chit-f and Chit-fgalmentioning

confidence: 53%

Preparation, Structural Characterization, and Property Investigation of Gallic Acid-Grafted Fungal Chitosan Conjugate

Paiva

Queiroz

Sabry

et al. 2021

JoF

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“…ALG and CT have been used in pesticide removal from aqueous solutions [17][18][19][20]. PVA hydrogels have high elasticity and mechanical strength and low cost, and have attracted great attention in wastewater treatment and pesticide capture [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions

Valdés

Bustos

et al. 2021

Polymers

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Pesticides are used worldwide to increase crop yields in agriculture. However, their toxicity and accumulation capacity can make them toxic to the environment, animals and humans. In the case of workers chronically exposed to these substances, they must be sampled continuously, so urine is an excellent option. In this sense, this study proposes to use poly(vinyl alcohol)-malic acid hydrogels, and chitosan-coated calcium alginate as new sorbent phases to be used in pesticide determination processes in urine. To better understand the behavior of these materials in the capture and desorption process, molecular dynamics simulations (MDS) were used, and desorption experiments were performed, using mechanical agitation, ultrasound, and pH variation in the desorption process, in order to optimize the parameters to obtain better recoveries. Under the optimal experimental conditions, the maximum recoveries were of the order of 11% (CFN), 3% (KCF), 53% (DMT), 18% (MTD) and 35% (MTL). Although the recoveries were not exhaustive, they are a first approximation for the use of these new sorbent phases in the determination of this type of compound in aqueous solutions and urine.

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“…It contained high amount of ash, carbohydrates, and appreciable quantity of protein, lipids, and TVB-N. The stated value of ash indicated that the bio-waste is a good source of minerals, fairly as the quantity reported for some other crab shells (Cabrera-Barjas et al 2020;Hamdi et al 2020). In fact, the ash content represents the minerals preserved in P spp , particularly the calcium carbonate, which is the main element of exoskeleton of crustacean's shells.…”

Section: Resultsmentioning

confidence: 85%

Trends in valorization of the invasive crab Portunus segnis for cleaner production of chitin, chitosan, and protein hydrolysate

Jabeur

Mechri

Mensi

et al. 2021

Preprint

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The diversity of marine biomasses is a set of exploitable and renewable resources with application in several sectors. In this context, a co-culture based on three protease-producing bacterial isolates namely; Aeribacillus pallidus VP3, Lysinibacillus fusiformis C250R , and Anoxybacillus kamchatkensis M1V strains, was carried out in a medium based on the invasive blue crab Portunus segnis bio-waste. Optimization of proteases production was performed using a central composite design (CCD). The highest level of proteases production obtained was 8,809 U/mL in a medium comprising 75 g/L of Portunus segnis by-product powder (Pspp ). The recovered protein hydrolysate (P Hyd ) was found to be active towards radical scavenging power, and against angiotensin I-converting enzyme (ACE). The extraction efficiency of the blue crab chitin (BC) was achieved with a yield of 32%. Afterward, chitosan was prepared through chitin N -deacetylation with a yield of 52%, leading to an acetylation degree (AD) of 19% and solubility of 90%. The spectrum of chitin and chitosan were depicted by Fourier-transform infrared spectroscopy (FTIR). The biological value of Pspp and its obtained derivates were evidenced via accredited protocols. These data constitute a roadmap towards a circular and sustainable bio-economic strategy for a clean transformation of a recalcitrant waste to bio-based products.

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Utilization of industrial by-product fungal biomass from Aspergillus niger and Fusarium culmorum to obtain biosorbents for removal of pesticide and metal ions from aqueous solutions

Cited by 21 publications

References 61 publications

Preparation, Structural Characterization, and Property Investigation of Gallic Acid-Grafted Fungal Chitosan Conjugate

Preparation, Structural Characterization, and Property Investigation of Gallic Acid-Grafted Fungal Chitosan Conjugate

Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions

Trends in valorization of the invasive crab Portunus segnis for cleaner production of chitin, chitosan, and protein hydrolysate

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